Test Suite problem #4 has an incorrect value.
Test suite #4 is incorrect
Remove any row in which a NaN appears
Check if number exists in vector
Swap two numbers
Rotate a matrix for 180 degree
Say type of roots in quadratic equation
Alternating 1´s and 0´s in a matrix
Get the value 100
Ratio between sums of prime and non-prime numbers
Alternate list of elements
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